
import React from 'react'
import '../style.css'
class Three extends React.Component{
    click(){
        console.log('ui')
    }
    render(){
        return (
            <div className="threeBox">
                <h3>三级组件</h3>
                <button onClick={this.click.bind(this)}>触发事件</button>
            </div>
        )
    }
}

export default Three;